Book reviews

Antennas in Matter is a compendium of the extensive work on this subject done at Harvard University up to 1978. The “matter” referred to in the title is limited to isotropic material media whose properties are fully represented by a specification of permittivity and conductivity as functions of frequency and spatial coordinates. In terms of applications, this means that the “matter” is mainly that associated with the surface of the earth, such as water, ice, snow, soil and rock, and the antennas are located below, on or above its surface. Due attention is also paid to biomedical applications for which the material medium may be skin, fat or muscle tissue. The antennas studied are either dipoles or loops; such geometrical simplicity is appropriate in view of the many complexities inherent in dealing with inhomogeneous media.